Medical Physics and Ultrasound

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1. What is ultrasound?

  • Sound waves with frequencies less than 10kHz
  • Sound waves with frequencies above 20kHz
  • Sound waves with frequencies above 10kHz
  • Sound waves with frequencies less than 2kHz
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2. What can CAT scans be used to image?

  • Soft and hard tissue
  • Photographs
  • Just soft tissue
  • Just hard tissue

3. What are the medical uses of ultrasound?

  • Breaking down kidney stones, pre-natal scanning of a foetus and measuring the speed of blood flow.
  • Breaking down kidney stones, pre-natal scanning of a foetus, measuring the speed of blood flow and seeing inside the body.
  • Breaking down kidney stones, pre-natal scanning of a foetus and seeing inside the body.
  • Pre-natal scanning of a foetus, measuring the speed of blood flow and seeing inside the body.

4. What type of radiation is used in medicine?

  • Ionising and non-ionising
  • Just ionising
  • Just non-ioninsing
  • Neither

5. What do CAT scans use?

  • Intense beams of X-rays that are strongly ionising
  • Weak beams of X-rays that are strongly ionising
  • Weak beams of X-rays that are weakly ionising
  • Intense beams of X-rays that are weakly ionising

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